OMAP4 has a single McASP instance with single serializer and locked for DIT mode. To be able to enable the support the following fixes needed: - Add the DAT port ranges to the target module's ranges - SIDLE mode must be disabled as it is not working with McASP most likely module integration issue with McASP
We can already fill in the op-mode and serial-dir for McASP as it only supports this configuration, but keep the module disabled as there is no known device available where it is used.
Signed-off-by: Peter Ujfalusi peter.ujfalusi@gmail.com --- arch/arm/boot/dts/omap4-l4-abe.dtsi | 38 +++++++++++++++-------------- 1 file changed, 20 insertions(+), 18 deletions(-)
diff --git a/arch/arm/boot/dts/omap4-l4-abe.dtsi b/arch/arm/boot/dts/omap4-l4-abe.dtsi index 8287fdaa526e..a8d66240d17d 100644 --- a/arch/arm/boot/dts/omap4-l4-abe.dtsi +++ b/arch/arm/boot/dts/omap4-l4-abe.dtsi @@ -186,36 +186,38 @@ mcbsp3: mcbsp@0 { };
target-module@28000 { /* 0x40128000, ap 8 08.0 */ + /* 0x4012a000, ap 10 0a.0 */ compatible = "ti,sysc-mcasp", "ti,sysc"; reg = <0x28000 0x4>, <0x28004 0x4>; reg-names = "rev", "sysc"; ti,sysc-sidle = <SYSC_IDLE_FORCE>, - <SYSC_IDLE_NO>, - <SYSC_IDLE_SMART>; + <SYSC_IDLE_NO>; /* Domains (V, P, C): iva, abe_pwrdm, abe_clkdm */ clocks = <&abe_clkctrl OMAP4_MCASP_CLKCTRL 0>; clock-names = "fck"; #address-cells = <1>; #size-cells = <1>; ranges = <0x0 0x28000 0x1000>, - <0x49028000 0x49028000 0x1000>; - - /* - * Child device unsupported by davinci-mcasp. At least - * RX path is disabled for omap4, and only DIT mode - * works with no I2S. See also old Android kernel - * omap-mcasp driver for more information. - */ - }; - - target-module@2a000 { /* 0x4012a000, ap 10 0a.0 */ - compatible = "ti,sysc"; - status = "disabled"; - #address-cells = <1>; - #size-cells = <1>; - ranges = <0x0 0x2a000 0x1000>, + <0x49028000 0x49028000 0x1000>, + <0x2000 0x2a000 0x1000>, <0x4902a000 0x4902a000 0x1000>; + + mcasp0: mcasp@0 { + compatible = "ti,omap4-mcasp-audio"; + reg = <0x0 0x2000>, + <0x4902a000 0x1000>; /* L3 data port */ + reg-names = "mpu","dat"; + interrupts = <GIC_SPI 109 IRQ_TYPE_LEVEL_HIGH>; + interrupt-names = "tx"; + dmas = <&sdma 8>; + dma-names = "tx"; + clocks = <&abe_clkctrl OMAP4_MCASP_CLKCTRL 0>; + clock-names = "fck"; + op-mode = <1>; /* MCASP_DIT_MODE */ + serial-dir = < 1 >; /* 1 TX serializers */ + status = "disabled"; + }; };
target-module@2e000 { /* 0x4012e000, ap 12 0c.0 */